devonwoody":9ki3nykw said:
I am very surprised there is not a greater choice and selection available on the market. I would have thought these days even a respirator could be a health and safety necessity even for traffic wardens etc. :wink:
John there are quite a few systems on the market, unfortunately to meet the needs of Health & Safety requirements at work they have to be very efficient at what they do, this and the fact that they are aimed at a sector of the market that has no option but to adopt them and can loose the costing in their accounting procedures means that they are priced outside the normal DIY pricing spectrum, but if you want to adequately protect your lungs then it is a price you have to pay.
devonwoody":9ki3nykw said:
But thanks, I am not impressed, I shall just put on a paper mask when blowing out the workshop and leave the jet air filter running more often. (that always seems to need a clean out when serviced)
I think the worst situation is emptying the dust extractor machines.
I'm afraid in that statement you have just highlighted the two most common misconceptions and reasons for the majority of DIY workers ending up with dust associated lung problems, as you are unfortunately only just becoming aware of.
BLOWING DUST out of anything let alone a workshop is the worst possible thing you can do as far as contaminating the air you are breathing, running a shop air filter does little to reduce this risk, by your own admission it always needs a clean out when serviced. You can't clean your lungs out and they have been processing the same dust stream as the shop air filter if you are not wearing an adequate mask.
Shop air filters can reduce the shop air dust load and limit the amount that settles on a surface when finishing a product etc. but if you are in there your lungs are doing exactly the same unless you have a good mask on.
Emptying or cleaning a dust extractor is about the most hazardous operation you can do, especially if using like many others a shop vacuum cleaner with inadequate final filtration and re-distribute the fine particles trapped by the debris build up back into the air in the exhaust stream.
A Paper Mask will not provide you with adequate protection, some yes, adequate no.